1 /* backupfile.h -- declarations for making Emacs style backup file names
3 Copyright (C) 1990-1992, 1997-1999, 2003-2004, 2009-2018 Free Software
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <https://www.gnu.org/licenses/>. */
29 /* When to make backup files. */
32 /* Never make backups. */
35 /* Make simple backups of every file. */
38 /* Make numbered backups of files that already have numbered backups,
39 and simple backups of the others. */
40 numbered_existing_backups
,
42 /* Make numbered backups of every file. */
46 #define VALID_BACKUP_TYPE(Type) \
47 ((unsigned int) (Type) <= numbered_backups)
49 extern char const *simple_backup_suffix
;
51 void set_simple_backup_suffix (char const *);
52 char *backup_file_rename (int, char const *, enum backup_type
);
53 char *find_backup_file_name (int, char const *, enum backup_type
);
54 enum backup_type
get_version (char const *context
, char const *arg
);
55 enum backup_type
xget_version (char const *context
, char const *arg
);
62 #endif /* ! BACKUPFILE_H_ */